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chap 11.
Question | Answer |
---|---|
Location of meninges? | membrane surrounding CNS |
Function of meninges? | To protect the brain |
Name the layers of meninges. | Dura meter, arachnoid and pia. |
inner layer of meninges | Pia |
Outer layer of meninges | Dura meter |
Middle layer of meninges | Arachnoid |
Location of the ventricles of the brain? | Within cerebral hemispheres and brainstem |
name the 4 venticles of the brain? | 1. lateral right2. Lateral left3.3rd4.4th |
what is located within the ventricles of the brian? | Cerebral Spinal Fluid |
Name the structure that connects the 3rd ventricle with the 4th ventricle? | Cerebral aqueduct |
_______ _________ secrete cerebrospinal fluid. | choroid plexus |
3 fuctions of the CSF? | 1. provides nutrients2.supports3. maintain stable ion concentration |
2 function of the spinal cord | 1.center for spinal refleces2. conduit for nerve impulses to and from the brain |
define reflex arc | automatic, subconcious responces to stimuli within or outside body |
reflex arc drawing | receptor - CNS - effector |
where is an impulse carried by an efferent neuron being carried to? | CNS |
Where is an impulse carried by an afferent neuron being carried to? | Effector |
List 3 reflex types? | 1. monosynaptic reflex2. Withdraw reflex3. Crossed extensor reflex |
Which type of reflex attempts to limit tissue damage? | Withdraw reflex |
Which type of reflex helps maintain proper posture? | Monosynaptic |
Which type of reflex crosses sensory impules to produce an opposite effect? | Crossed extensor reflex |
____ tracts of the spinal cord carry impulses to the muscles and glands. | Asending |
_____ tracts of the spinal cord carry impules to the brain for processing. | Desending |
6 functions of the brain. | 1. reasoning2. stores memory3. creates personality4. sensation5. perception6. coordinates mucsle movements |
name the 5 major parts of the brain. | 1. cerebrum2. basal nucleus3. diencephlon4. brainstem5. cerebellum |
During brain development the brain begins development as 3 vesicles? | 1. forebrain2. midbrain3. hindbrain |
Contrast the longitudinal fissure and trasverse fissure. | long= up and down split.transverse= left and right <-> |
contrast convolutions and sulci | convoultions- bumpssulci= grooves |
the ____ ______ connects the two hemispheres of the brain. | corpus collosum |
Name the 5 lobes of the cerebral hemispheres | 1. frontal2. temporal.3. parietal4. insula5. occipital |
four functions of the cerebrum | 1. interpret impulses2. initiating voluntary movements3. stores information4. reasoning |
visual perception, emotions, music patterns, nonverbal tasks, and motor tasks | nondominant |
speech, analytical and computational skills | dominant |
voluntary eye movement | frontal eye field |
motor area controls muscles needed for speech | Broca's area |
Smell | parietal |
taste | frontal |
vision | occipital |
touch | parietal |
hearing | temporal |
CSF is locatied in the what space? | subarachnoid |
which motor area controls voluntary muscle movements? | motor areas |
____ ____ are masses of gray matter deep in the cerebrum that pro. dopamine. | Basal Nuclei |
functuon of the thalamus | gateway for sensory impules heading to cerebral cortex |
diencephlon located? | above brainstem |
function of hypothalamus | maintain homeostatic functions |
function limbic system? and location | controls emotion, feeling, images. located various parts of CNS |
3 parts of brain | midbrain, pons, medulla oblongata |
function on pons. | reg. rate and depth of breathing |
functions of medualla oblongata | nonvital reflex control center, respiratory center |
slow wave sleep | restful, dreamless |
REM | heartrate and resp. rates irregul. |
cerebellum location | inferior to occipital lobe |
functions of cerebellum 2 | balance; corr. skeletal muscle activity. |